#831B22#831B22

#831B22 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.2% C 0.138 H 22.9°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#831B22
RGB	rgb(131, 27, 34)
HSL	hsl(356, 66%, 31%)
HSV	hsv(356, 79%, 51%)
CMYK	cmyk(0%, 79.4%, 74%, 48.6%)
CIE-LAB	lab(28.71, 43.65, 23.54)
CIE-LCH	lch(28.71, 49.60, 28.34°)
OKLab	oklab(40.24% 0.1276 0.0538)
OKLCH	oklch(40.24% 0.138 22.9)
XYZ	xyz(10.0419, 5.7262, 2.0896)
Luminance	0.0573 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831B22 #1B837C

analogous

#831B56 #831B22 #83481B

triadic

#831B22 #22831B #1B2283

tetradic

#831B22 #56831B #1B837C #481B83

square

#831B22 #56831B #1B837C #481B83

split-complementary

#831B22 #1B8348 #1B5683

monochromatic

#1E0608 #501115 #831B22 #B6252F #D8414B

Accessibility & contrast

On white

9.79

#831B22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831B22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831B22

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831B22	#FFFFFF	#000000	##FFFFFF
##831B22	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3521

Deuteranopia (green-blind)

#544C1E

Tritanopia (blue-blind)

#91001F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831b22;
/* rgb */ color: rgb(131, 27, 34);
/* oklch */ color: oklch(40.2% 0.138 22.9);

Tailwind

colors: {
  custom: {
    50: '#af625d',
    500: '#831b22',
    950: '#000000',
  },
}

SCSS

$custom: #831b22;
$custom-light: #af625d;
$custom-dark: #000000;

JSON

{
  "hex": "#831b22",
  "rgb": {
    "r": 131,
    "g": 27,
    "b": 34
  },
  "hsl": {
    "h": 355.962,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.40237,
    "c": 0.13849,
    "h": 22.9
  },
  "luminance": 0.05725
}

Semantic roles & 50–950 ramp

primary

#831B22

secondary

#43B6AF

accent

#E9DD3F

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120504

muted

#817A79

Preview Lab

Preview with #831B22

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →